Avoid using "px" as units; use "dp" instead
2012-06-28 15:33
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今天在写程序的时候，使用px设置组件宽度，弹出Avoid using "px" as units; use "dp" instead的提示，并且编译不通过
dp是可以根据屏幕大小变化的，而px就不行，主要是Android不主张再使用固定的长度单位了，如果想把dp转换成px值，
那么使用如下的代码
dp是可以根据屏幕大小变化的，而px就不行，主要是Android不主张再使用固定的长度单位了，如果想把dp转换成px值，
那么使用如下的代码
public static int dpToPixels(Context context, float dp) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dp * scale + 0.5f);
}
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